Tyranny's new nightmare: Twitter - Los Angeles Times

Twenty years ago, the world was transfixed by an image of courageous resistance -- a lone young man standing in the road before a column of Chinese army tanks moving into Tiananmen Square to crush the students and others who'd gone there to demonstrate for reform. Since Saturday, the global community has been similarly gripped by the tragic photos and video of Neda Agha-Soltan, the 26-year-old Iranian woman shot to death on the streets of Tehran while on her way to one of the protests over that country's disputed presidential election.

The most famous of the photos of the Chinese hero was taken by Associated Press photographer Jeff Widener. Other memorable images of the standoff were shot by photo journalists who were in Beijing working for Newsweek, Reuters and the Magnum photo agency. In Iran, by contrast, we still don't know who took the stills, video and audio recordings of the dying young woman, who has become known to tens of millions simply as "Neda," because the images and sound were collected on the cellphones of her fellow demonstrators and surreptitiously transmitted over the Internet to the rest of the world...